Worksheet
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Right Triangle Trigonometry

For Students 10th
In this geometry activity, 10th graders use right triangle trigonometry to find the missing angle measure.  The two page activity contains fourteen problems.  Answers are provided. 
Worksheet
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Pythagorean Theorem and Triangles

For Students 11th
In this geometry worksheet, 11th graders solve problems with right triangles using the Pythagorean Theorem. They find the missing angle or missing side. There are 15 questions with an answer key.
Lesson Plan
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Is it a Polygon?

For Teachers 2nd
Second graders investigate polygons. In this geometry lesson, 2nd graders practice identifying characteristics of polygons on the overhead using a T-45 calculator display. Students play the game "Guess My Rule" to identify what polygons...
Lesson Plan
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Perfectly Puzzling Pentominoes

For Teachers 2nd
Second graders utilize manipulatives (pentominoes) to demonstrate knowledge of: lines of symmetry, slides, reflections (flips), rotations (turns), area, and perimeter. This lesson gives students a meaningful way to practice these...
Lesson Plan
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Decimals, Percents and Fractions

For Teachers 6th
Sixth graders convert decimals and percents. They observe a teacher lead demonstration of converting decimals to percents and percents to decimals. Students practice what they have seen.
Lesson Plan
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Traveling aroud Our Town

For Teachers 1st - 2nd
Students are asked to describe to a partner how he or she walks to school or the bus stop. They are shown on the overhead an one-inch grid paper, and at the intersection of two lines on the grid paper, students are shown a house and...
Lesson Plan
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Volume

For Teachers 8th - 12th
Students, after reviewing the measuring of the lengths of sides of different shapes along with the calculation of their perimeters and areas, encounter what it means by the 'perimeter' of a polygon. They practice measuring units of...
Lesson Plan
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Introduction to Field Mapping with a Compass and Pace

For Teachers 7th - 8th
Students practice using compass and calibrate their own pace, take field measurements of pre-set course with compass and pace, convert measurements into map, using angles and vectors, and make composite class map by adjusting different...
Lesson Plan
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Angles: Angles, Angles, Everywhere

For Teachers 6th - 8th
Students practice estiminating and measuring angles. After watching a short video, they identify angles in objects in the classroom and their homes. In groups, they participate in activities in which they are given a scenerio and are...
Lesson Plan
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Fractions

For Teachers 6th - 8th
Students, while practicing solving equations with fractions, create their own vocabulary list to utilize through out the year that is associated with fractions. They create their own K-W-L sheet, fill it in and then locate a variety of...
Lesson Plan
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Types And Magnitudes Of Earthquakes

For Teachers 6th - 12th
Students investigate the concept of earthquakes and the different types of magnitudes. They research the Richter scale and how it is used to measure the intensities of earthquakes. Students then apply the concept by completing a...
Lesson Plan
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Matching Objects and Patterns

For Teachers 1st
First graders participate in hands-on activities and use objects to create patterns. They observe a PowerPoint lesson plan describing matching objects and patterns. In groups, 1st graders complete geometry computer activities such as...
Lesson Plan
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Minimum and Maximum Perimeter

For Teachers 6th - 12th Standards
Pupils practice a variety of strategies with varying numbers of tiles to form shapes and then find the minimum and maximum perimeter for each one. Each group is assigned a different area to build either with square tiles or a geoboard....
Worksheet
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Finding Perimeter and Area

For Students 5th - 8th
In this area and perimeter worksheet, students are given the equations to find the perimeter and area of objects. They practice finding the perimeter by measuring the sides of given objects and adding them together. They find the area of...
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Chords of Circle

For Students 10th
In this geometry worksheet, 10th graders solve problems using parallel chords, perpendicular bisectors and chords that are equal distance from the center.
Lesson Plan
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Balancing Act

For Teachers 2nd
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry activity, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
Lesson Plan
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Pythagorean Theorem

For Teachers 10th
In this geometry worksheet, 10th graders solve for missing sides and angles of a triangle. They use the pythagorean theorem to solve for the unknown in a right triangle. There are 5 questions on this worksheet.
Lesson Plan
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Mr. Lincoln's Hat

For Teachers K - 5th
Bring out the inner artist with this Abraham Lincoln lesson. Elementary students work on a home project creating a hat similar to Abraham Lincoln's hat. They will use geometry and measurement to create the scale of the hat, then...
Lesson Plan
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Parallel and Perpendicular Lines

For Teachers 10th
Tenth graders explore parallel and perpendicular lines.  In this geometry instructional activity, 10th graders investigate the relationships associated with parallel lines and transversals, perpendicular lines, and the angles formed...
Lesson Plan
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Finding the nth Term

For Teachers 10th - 11th
Students analyze patterns and try to figure out the next term in the sequence. In this algebra lesson plan, students discuss the functions rule and how it works to solve sequences. They practice solving problems and find the nth term or...
Worksheet
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Comparisons with Circles

For Students 8th - 10th
In this geometry worksheet, students are asked to solve fractions using circles. They divide the circles into different parts and use inequality symbols to identify the parts needed. There are 36 problems dealing with fractions.
Lesson Plan
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Angles

For Teachers 7th - 12th
Students measure angles using a protractor. In this geometry lesson, students solve for the missing angles using equations set to the theorem of triangles. They measure missing angles through construction and identify congruent angles.
Lesson Plan
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Contructions and Conjectures

For Teachers 10th - 11th
Students make constructions and conjectures. In this geometry lesson, students construct right, acute and obtuse angles using a straight edge and a protractor. They investigate parallel lines and the angles formed by the angles.
Lesson Plan
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Special Triangles and Circles

For Teachers 9th - 11th
Students investigate special triangles and circles. In this geometry lesson, students construct a perpendicular bisector and discuss angles of a triangle. They find the angle bisectors, vetex and the types of circle constructed.

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